HI
- hi – (s) Hindi language (ISO 639-1 code)
- HI – (s) Hawaii (postal symbol)
- HIDACZ – (p) High-Density Airspace Control Zone ("high dak zed/zee")
- HIH – (i) His (or Her) Imperial Highness
- HIM – (i) His (or Her) Imperial Majesty
- HIMAD – (p) High to Medium Altitude Air Defence (see also H/MAD)
- HIMEZ – (a) High Altitude Missile Engagement Zone
- hin – (s) Hindi language (ISO 639-2 code)
- HIPAA – (i) U.S. Health Insurance Portability and Accountability Act
- Hipparcos – (p) HIgh Precision Parallax COllecting Satellite
- Hird – (a) Hurd of interfaces representing depth (cf. HURD)
- HiRISE – (p) High Resolution Imaging Science Experiment
- HIT – (a) Health Information Technology
- HIV – (i) Human Immunodeficiency Virus
- HIWT – (i) Hobart Institute of Welding Technology
Read more about this topic: List Of Acronyms And Initialisms: H